Sexual harassment is an increasingly sensitive issue, as women in growing numbers turn to the courts to protect them from aggressive sexual advances. 
Now, scientists say, the matter may be about to take on proportions beyond the merely human.
The researchers reported evidence that some female guppies, a popular aquarium fish, risk their lives to avoid unwanted [...]

For the first time, scientists say they have traced the origin of an “altruism gene,” possibly shedding light on the nagging mystery of how generosity and cooperation evolved.

The findings, they add, suggest that at least some altruism genes evolved from genes that originally served to suppress some biological activities in lean times.

The scientists traced an [...]

Scientists’ reactions have ranged from deep skepticism to interest in a report of a mutation that makes people walk on all fours, cited in a Turkish study as a possible instance of “backward evolution.”
The bizarre case, reported last week in World Science, has also drawn attention from several scientists in Europe, some of [...]

An editor of a noted scientific journal says he has discovered a genetic defect that seems to set back the clock on human evolution by more than a million years.
Its victims walk on all fours and mouth a primitive language, the scientist reported. He added that the syndrome may literally undo eons of human [...]